You have made some good points here... The idea here was that the British made a decision similar to that of the Russians in Alaska, suggesting that they had no want for the territories in the west and that they would be collectively "neutral." I will ignore the "do you know anything" [presumably about this epoch] comment...
The idea is that through the use of European technologies Tecumseh somehow annexed the western tribes, and defeated the Red Styx with the help of the redcoats. Although "white supremacy" was a common enough sentiment within the empire, we have to acknowledge that the British don't want the western territories but neither do they want the Americans to have them, thus they have created a state to stop the latter from occurring.
In fact, it is a misconception that the American ships were completely ******* up the British ships, and as Canada, or the British empire, did win the War of 1812 [yes, I am a Canadian, the confession is made] they could have exacted far greater measures on the US and presumably would have banned western expansion as they had to the thirteen colonies.
Maybe I'll abandon this thread, but at least there are some points to be made.